*The 940 Series Are Extremely Heavy Duty.* This Truck’S Strong Design Is Intended For Rough Usage On Construction Jobs, Steel Mills And Refineries. *Comes Standard With A Heavy Duty Lock-Top Tool Box For Storing Tools, Regulators And Torches While Still Connected To The Hoses. *Cylinders May Be Secured On Truck By The Exclusive Harper ”Chain-Lok” System Or Optional Belly Band. Designate A ”B” In The Part Number For Belly Band. See Model Number 940B-72. *An Additional Feature Is A Fire Barrier. Designate An ‘F’ In The Part Number For Fire Barrier. Example: 940F-34. *Handles Large Cylinders.